The Cell Cycle and Cell division

How many base pairs is the Human Genome?

• About 3x10^3

• About 3x10^9

• About 1x10^6

• About 3x10^10

What is the DNA wrapped with to form chromatin?

• Lipids

• Ribosomes

• Histone proteins

• Carbohydrates

What is the shape of a chromosome when it is visible under a light microscope during cell division?

• I-shaped

• S-shaped

• X-shaped

• O-shaped

What is the name of the point where two chromatids are joined?

• Chromosome

• Chromatin

• Centromere

• Gene

What is the structure of prokaryotic DNA compared to eukaryotic DNA?

• Prokaryotic DNA is longer and linear

• Prokaryotic DNA is shorter and circular

• Prokaryotic DNA is exactly the same as eukaryotic DNA

• Prokaryotic DNA is associated with histone proteins

What is NOT associated with prokaryotic DNA?

• Genetic engineering techniques

• Being a closed loop

• Being much shorter than eukaryotic DNA

• Histone proteins

What is a karyotype?

• A type of fluorescent dye used to stain cells

• A procedure to extract DNA from prokaryotes

• A display of chromosomes arranged in order of size

• A genetic engineering technique

How are chromosomes within a species numbered in a karyotype?

• From smallest to largest

• Randomly

• Based on the number of genes

• From largest to smallest

What does it mean when humans are described as diploid?

• They have DNA that is circular and not associated with histone proteins

• They have an odd number of chromosomes

• They have two sets of chromosomes

• They have the same number of chromosomes as fruit flies

Which statement is true regarding the number of chromosomes in different species?

• All species have the same number of chromosomes

• The number of chromosomes is always related to the total amount of DNA

• Humans have the highest number of chromosomes among all species

• The number of chromosomes does not appear to be related to the number of genes or total amount of DNA